Answer:
1. distance = 265.5 km
Solution:
d = speed × time
d = 75 km/h × 3.5 h (cancel h)
d = 265.5 km
2. speed = 10 m
Solution
s= distance ÷ time
s = 200 m ÷ 20 s
s = 10 m/2
3. time = 6 hours
t = distance ÷ speed
t = 390 km ÷ 65 km/h (cancel km)
t = 6 h
4. speed = 86 km/h
solution
s = d ÷ t
s = 473 km ÷ 5.5 h
s = 86 km/h
5. distance = 799.8 m
d = s × t
d = 9.3 m/s × 86s (cancel s)
d = 799.8 m
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Answers & Comments
Answer:
1. distance = 265.5 km
Solution:
d = speed × time
d = 75 km/h × 3.5 h (cancel h)
d = 265.5 km
2. speed = 10 m
Solution
s= distance ÷ time
s = 200 m ÷ 20 s
s = 10 m/2
3. time = 6 hours
Solution
t = distance ÷ speed
t = 390 km ÷ 65 km/h (cancel km)
t = 6 h
4. speed = 86 km/h
solution
s = d ÷ t
s = 473 km ÷ 5.5 h
s = 86 km/h
5. distance = 799.8 m
solution
d = s × t
d = 9.3 m/s × 86s (cancel s)
d = 799.8 m